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NAT I Medical Physics MCQs With Answers

Question # 1

The time period of a simple pendulum is 2 seconds if its length is increased by 4 times then its period becomes

Choose an answer

16 s

12 s

8 s

4 s

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Question # 2

With the propagation of a longitudinal wave through a material medium the quantities transmitted in the propagation direction are

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Energy momentum and mass

Energy

Energy and mass

Energy and linear momentum

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Question # 3

The modulus of rigidity of a liquid is

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Zero

Infinity

A value not one of those mentioned above

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Question # 4

The twinkling of stars is due to

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The fact that stars do not emit light continuously

The refractive index of the earth's atmosphere fluctuate

Intermittent absorption of star light by its own atmosphere

None of them

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Question # 5

The average power dissipation in a pure capacitor in AC circuit is

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1/2 CV²

CV²

2CV²

Zero

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Question # 6

The henry is the unit for

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Resistance

Magnetic flux

Magnetic field

Inductance

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Question # 7

A conducting wire is drawn to double its length Final resistivity of the material will be

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Double of the original one

Half of the original one

One-fourth of the original one

Same as original one

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Question # 8

If in a moving coil galvanometer a current 1 produces a deflection θ then

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i ∞ tan θ

i ∞ θ²

i ∞ θ

i ∞ √θ

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Question # 9

If the dot product of two non-zero vectors vanishes the vectors will be

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In the same direction

Opposite to each other

Perpendicular to each other

Zero

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